Takahashi Hiroyuki
Primate Research Institute, Kyoto University, Kanrin, Inuyama, Aichi, 484-8506, Japan.
Primates. 2002 Apr;43(2):133-8. doi: 10.1007/BF02629673.
Male age-rank and tenure-rank relationships were studied for seven years in unprovisioned Japanese macaque (Macaca fuscata fuscata) troop on Kinkazan Island, Japan. Males whose estimated ages were between 15 and 19 yr old monopolized the highest ranks, while older males whose estimated ages were > or = 20 yr old tended to decline in rank, resulting in a humped age-rank curve. The ranks of males tended to rise as their tenure in the troop increased. The departure of higher-ranking males was the social mechanism for changes in rank, suggesting that the disappearance of higher-ranking males plays an important role in determining rank dominance.
在日本金ケ山岛的一个没有食物供应的日本猕猴（Macaca fuscata fuscata）群体中，对雄性的年龄等级和任期等级关系进行了为期七年的研究。估计年龄在15至19岁之间的雄性占据最高等级，而估计年龄大于或等于20岁的年长雄性等级往往下降，从而形成了一个驼峰状的年龄等级曲线。雄性的等级随着它们在群体中的任期增加而趋于上升。高等级雄性的离开是等级变化的社会机制，这表明高等级雄性的消失在决定等级优势方面起着重要作用。
